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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_http.h>
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10
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11
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12 #define NGX_HTTP_USERID_OFF 0
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13 #define NGX_HTTP_USERID_LOG 1
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14 #define NGX_HTTP_USERID_V1 2
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15 #define NGX_HTTP_USERID_ON 3
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16
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17 /* 31 Dec 2037 23:55:55 GMT */
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18 #define NGX_HTTP_USERID_MAX_EXPIRES 2145916555
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19
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20
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21 typedef struct {
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58
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22 ngx_uint_t enable;
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0
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23
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24 ngx_int_t service;
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25
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26 ngx_str_t name;
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27 ngx_str_t domain;
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28 ngx_str_t path;
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88
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29 ngx_str_t p3p;
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30
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0
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31 time_t expires;
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88
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32
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33 u_char mark;
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0
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34 } ngx_http_userid_conf_t;
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35
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36
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37 typedef struct {
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10
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38 uint32_t uid_got[4];
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39 uint32_t uid_set[4];
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88
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40 ngx_str_t cookie;
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630
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41 ngx_uint_t reset;
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0
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42 } ngx_http_userid_ctx_t;
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43
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44
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376
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45 static ngx_http_userid_ctx_t *ngx_http_userid_get_uid(ngx_http_request_t *r,
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46 ngx_http_userid_conf_t *conf);
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47 static ngx_int_t ngx_http_userid_variable(ngx_http_request_t *r,
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48 ngx_http_variable_value_t *v, ngx_str_t *name, uint32_t *uid);
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0
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49 static ngx_int_t ngx_http_userid_set_uid(ngx_http_request_t *r,
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48
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50 ngx_http_userid_ctx_t *ctx, ngx_http_userid_conf_t *conf);
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582
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51 static ngx_int_t ngx_http_userid_create_uid(ngx_http_request_t *r,
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52 ngx_http_userid_ctx_t *ctx, ngx_http_userid_conf_t *conf);
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0
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53
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122
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54 static ngx_int_t ngx_http_userid_add_variables(ngx_conf_t *cf);
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230
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55 static ngx_int_t ngx_http_userid_init(ngx_conf_t *cf);
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0
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56 static void *ngx_http_userid_create_conf(ngx_conf_t *cf);
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57 static char *ngx_http_userid_merge_conf(ngx_conf_t *cf, void *parent,
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48
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58 void *child);
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59 static char *ngx_http_userid_domain(ngx_conf_t *cf, void *post, void *data);
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60 static char *ngx_http_userid_path(ngx_conf_t *cf, void *post, void *data);
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61 static char *ngx_http_userid_expires(ngx_conf_t *cf, ngx_command_t *cmd,
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62 void *conf);
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63 static char *ngx_http_userid_p3p(ngx_conf_t *cf, void *post, void *data);
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88
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64 static char *ngx_http_userid_mark(ngx_conf_t *cf, ngx_command_t *cmd,
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65 void *conf);
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348
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66 static ngx_int_t ngx_http_userid_init_worker(ngx_cycle_t *cycle);
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88
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67
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0
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68
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69
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348
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70 static uint32_t start_value;
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0
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71 static uint32_t sequencer_v1 = 1;
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72 static uint32_t sequencer_v2 = 0x03030302;
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73
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74
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75 static u_char expires[] = "; expires=Thu, 31-Dec-37 23:55:55 GMT";
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76
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77
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78 static ngx_http_output_header_filter_pt ngx_http_next_header_filter;
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79
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80
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81 static ngx_conf_enum_t ngx_http_userid_state[] = {
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82 { ngx_string("off"), NGX_HTTP_USERID_OFF },
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83 { ngx_string("log"), NGX_HTTP_USERID_LOG },
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84 { ngx_string("v1"), NGX_HTTP_USERID_V1 },
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85 { ngx_string("on"), NGX_HTTP_USERID_ON },
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86 { ngx_null_string, 0 }
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87 };
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88
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89
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10
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90 static ngx_conf_post_handler_pt ngx_http_userid_domain_p =
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91 ngx_http_userid_domain;
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10
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92 static ngx_conf_post_handler_pt ngx_http_userid_path_p = ngx_http_userid_path;
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93 static ngx_conf_post_handler_pt ngx_http_userid_p3p_p = ngx_http_userid_p3p;
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0
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94
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95
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96 static ngx_command_t ngx_http_userid_commands[] = {
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97
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98 { ngx_string("userid"),
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99 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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100 ngx_conf_set_enum_slot,
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101 NGX_HTTP_LOC_CONF_OFFSET,
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102 offsetof(ngx_http_userid_conf_t, enable),
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103 ngx_http_userid_state },
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104
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105 { ngx_string("userid_service"),
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106 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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0
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107 ngx_conf_set_num_slot,
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108 NGX_HTTP_LOC_CONF_OFFSET,
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109 offsetof(ngx_http_userid_conf_t, service),
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110 NULL },
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111
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112 { ngx_string("userid_name"),
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88
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113 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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0
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114 ngx_conf_set_str_slot,
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115 NGX_HTTP_LOC_CONF_OFFSET,
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116 offsetof(ngx_http_userid_conf_t, name),
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117 NULL },
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118
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119 { ngx_string("userid_domain"),
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88
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120 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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0
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121 ngx_conf_set_str_slot,
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122 NGX_HTTP_LOC_CONF_OFFSET,
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123 offsetof(ngx_http_userid_conf_t, domain),
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124 &ngx_http_userid_domain_p },
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0
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125
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126 { ngx_string("userid_path"),
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127 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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0
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128 ngx_conf_set_str_slot,
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129 NGX_HTTP_LOC_CONF_OFFSET,
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130 offsetof(ngx_http_userid_conf_t, path),
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131 &ngx_http_userid_path_p },
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0
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132
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133 { ngx_string("userid_expires"),
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134 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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135 ngx_http_userid_expires,
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136 NGX_HTTP_LOC_CONF_OFFSET,
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137 0,
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138 NULL },
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139
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10
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140 { ngx_string("userid_p3p"),
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141 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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142 ngx_conf_set_str_slot,
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143 NGX_HTTP_LOC_CONF_OFFSET,
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144 offsetof(ngx_http_userid_conf_t, p3p),
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145 &ngx_http_userid_p3p_p },
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146
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88
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147 { ngx_string("userid_mark"),
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148 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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149 ngx_http_userid_mark,
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150 NGX_HTTP_LOC_CONF_OFFSET,
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151 0,
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152 NULL },
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153
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48
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154 ngx_null_command
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0
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155 };
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156
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157
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216
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158 static ngx_http_module_t ngx_http_userid_filter_module_ctx = {
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122
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159 ngx_http_userid_add_variables, /* preconfiguration */
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230
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160 ngx_http_userid_init, /* postconfiguration */
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0
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161
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162 NULL, /* create main configuration */
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163 NULL, /* init main configuration */
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164
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165 NULL, /* create server configuration */
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166 NULL, /* merge server configuration */
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167
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168 ngx_http_userid_create_conf, /* create location configration */
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169 ngx_http_userid_merge_conf /* merge location configration */
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170 };
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171
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172
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173 ngx_module_t ngx_http_userid_filter_module = {
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58
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174 NGX_MODULE_V1,
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0
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175 &ngx_http_userid_filter_module_ctx, /* module context */
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176 ngx_http_userid_commands, /* module directives */
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177 NGX_HTTP_MODULE, /* module type */
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90
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178 NULL, /* init master */
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230
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179 NULL, /* init module */
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348
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180 ngx_http_userid_init_worker, /* init process */
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90
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181 NULL, /* init thread */
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182 NULL, /* exit thread */
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183 NULL, /* exit process */
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184 NULL, /* exit master */
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185 NGX_MODULE_V1_PADDING
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0
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186 };
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187
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188
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630
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189 static ngx_str_t ngx_http_userid_got = ngx_string("uid_got");
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190 static ngx_str_t ngx_http_userid_set = ngx_string("uid_set");
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191 static ngx_str_t ngx_http_userid_reset = ngx_string("uid_reset");
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192 static ngx_uint_t ngx_http_userid_reset_index;
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122
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193
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194
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48
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195 static ngx_int_t
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196 ngx_http_userid_filter(ngx_http_request_t *r)
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0
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197 {
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198 ngx_http_userid_ctx_t *ctx;
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199 ngx_http_userid_conf_t *conf;
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200
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146
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201 if (r != r->main) {
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202 return ngx_http_next_header_filter(r);
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203 }
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204
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205 conf = ngx_http_get_module_loc_conf(r, ngx_http_userid_filter_module);
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206
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207 if (conf->enable < NGX_HTTP_USERID_V1) {
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208 return ngx_http_next_header_filter(r);
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209 }
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210
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211 ctx = ngx_http_userid_get_uid(r, conf);
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48
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212
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213 if (ctx == NULL) {
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214 return NGX_ERROR;
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215 }
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216
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376
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217 if (ngx_http_userid_set_uid(r, ctx, conf) == NGX_OK) {
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218 return ngx_http_next_header_filter(r);
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0
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219 }
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220
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376
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221 return NGX_ERROR;
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222 }
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223
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224
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225 static ngx_int_t
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226 ngx_http_userid_got_variable(ngx_http_request_t *r,
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227 ngx_http_variable_value_t *v, uintptr_t data)
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228 {
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229 ngx_http_userid_ctx_t *ctx;
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230 ngx_http_userid_conf_t *conf;
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231
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232 conf = ngx_http_get_module_loc_conf(r->main, ngx_http_userid_filter_module);
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233
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234 if (conf->enable == NGX_HTTP_USERID_OFF) {
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235 v->not_found = 1;
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236 return NGX_OK;
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237 }
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238
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582
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239 ctx = ngx_http_userid_get_uid(r->main, conf);
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376
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240
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241 if (ctx == NULL) {
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242 return NGX_ERROR;
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243 }
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244
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245 if (ctx->uid_got[3] != 0) {
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246 return ngx_http_userid_variable(r->main, v, &conf->name, ctx->uid_got);
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376
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247 }
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248
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249 v->not_found = 1;
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250
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251 return NGX_OK;
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0
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252 }
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253
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254
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376
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255 static ngx_int_t
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256 ngx_http_userid_set_variable(ngx_http_request_t *r,
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257 ngx_http_variable_value_t *v, uintptr_t data)
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0
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258 {
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376
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259 ngx_http_userid_ctx_t *ctx;
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260 ngx_http_userid_conf_t *conf;
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261
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582
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262 conf = ngx_http_get_module_loc_conf(r->main, ngx_http_userid_filter_module);
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376
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263
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264 if (conf->enable < NGX_HTTP_USERID_V1) {
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376
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265 v->not_found = 1;
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266 return NGX_OK;
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267 }
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268
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582
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269 ctx = ngx_http_userid_get_uid(r->main, conf);
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270
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271 if (ctx == NULL) {
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272 return NGX_ERROR;
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273 }
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376
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274
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582
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275 if (ngx_http_userid_create_uid(r->main, ctx, conf) != NGX_OK) {
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276 return NGX_ERROR;
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277 }
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278
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279 if (ctx->uid_set[3] == 0) {
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280 v->not_found = 1;
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281 return NGX_OK;
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282 }
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283
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284 return ngx_http_userid_variable(r->main, v, &conf->name, ctx->uid_set);
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376
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285 }
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286
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287
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288 static ngx_http_userid_ctx_t *
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289 ngx_http_userid_get_uid(ngx_http_request_t *r, ngx_http_userid_conf_t *conf)
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290 {
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291 ngx_int_t n;
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292 ngx_str_t src, dst;
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293 ngx_table_elt_t **cookies;
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294 ngx_http_userid_ctx_t *ctx;
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295
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296 ctx = ngx_http_get_module_ctx(r, ngx_http_userid_filter_module);
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297
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298 if (ctx) {
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299 return ctx;
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300 }
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301
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302 if (ctx == NULL) {
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303 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_userid_ctx_t));
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304 if (ctx == NULL) {
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305 return NULL;
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306 }
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307
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308 ngx_http_set_ctx(r, ctx, ngx_http_userid_filter_module);
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309 }
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0
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310
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58
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311 n = ngx_http_parse_multi_header_lines(&r->headers_in.cookies, &conf->name,
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88
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312 &ctx->cookie);
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58
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313 if (n == NGX_DECLINED) {
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376
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314 return ctx;
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58
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315 }
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10
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316
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88
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317 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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318 "uid cookie: \"%V\"", &ctx->cookie);
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319
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320 if (ctx->cookie.len < 22) {
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58
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321 cookies = r->headers_in.cookies.elts;
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322 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
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323 "client sent too short userid cookie \"%V\"",
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324 &cookies[n]->value);
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376
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325 return ctx;
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58
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326 }
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0
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327
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88
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328 src = ctx->cookie;
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329
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58
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330 /*
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88
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331 * we have to limit the encoded string to 22 characters because
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332 * 1) cookie may be marked by "userid_mark",
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333 * 2) and there are already the millions cookies with a garbage
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334 * instead of the correct base64 trail "=="
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58
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335 */
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0
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336
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58
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337 src.len = 22;
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0
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338
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58
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339 dst.data = (u_char *) ctx->uid_got;
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0
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340
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58
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341 if (ngx_decode_base64(&dst, &src) == NGX_ERROR) {
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342 cookies = r->headers_in.cookies.elts;
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343 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
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344 "client sent invalid userid cookie \"%V\"",
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345 &cookies[n]->value);
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376
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346 return ctx;
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58
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347 }
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0
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348
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58
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349 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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350 "uid: %08XD%08XD%08XD%08XD",
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351 ctx->uid_got[0], ctx->uid_got[1],
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352 ctx->uid_got[2], ctx->uid_got[3]);
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376
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353
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354 return ctx;
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0
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355 }
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356
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357
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48
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358 static ngx_int_t
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|
|
359 ngx_http_userid_set_uid(ngx_http_request_t *r, ngx_http_userid_ctx_t *ctx,
|
|
|
360 ngx_http_userid_conf_t *conf)
|
|
0
|
361 {
|
|
582
|
362 u_char *cookie, *p;
|
|
|
363 size_t len;
|
|
|
364 ngx_str_t src, dst;
|
|
|
365 ngx_table_elt_t *set_cookie, *p3p;
|
|
0
|
366
|
|
582
|
367 if (ngx_http_userid_create_uid(r, ctx, conf) != NGX_OK) {
|
|
|
368 return NGX_ERROR;
|
|
|
369 }
|
|
454
|
370
|
|
582
|
371 if (ctx->uid_set[3] == 0) {
|
|
|
372 return NGX_OK;
|
|
0
|
373 }
|
|
|
374
|
|
10
|
375 len = conf->name.len + 1 + ngx_base64_encoded_length(16) + conf->path.len;
|
|
0
|
376
|
|
|
377 if (conf->expires) {
|
|
|
378 len += sizeof(expires) - 1 + 2;
|
|
|
379 }
|
|
|
380
|
|
28
|
381 if (conf->domain.len) {
|
|
10
|
382 len += conf->domain.len;
|
|
0
|
383 }
|
|
|
384
|
|
382
|
385 cookie = ngx_pnalloc(r->pool, len);
|
|
48
|
386 if (cookie == NULL) {
|
|
0
|
387 return NGX_ERROR;
|
|
|
388 }
|
|
|
389
|
|
122
|
390 p = ngx_copy(cookie, conf->name.data, conf->name.len);
|
|
0
|
391 *p++ = '=';
|
|
|
392
|
|
630
|
393 if (ctx->uid_got[3] == 0 || ctx->reset) {
|
|
88
|
394 src.len = 16;
|
|
|
395 src.data = (u_char *) ctx->uid_set;
|
|
|
396 dst.data = p;
|
|
|
397
|
|
|
398 ngx_encode_base64(&dst, &src);
|
|
|
399
|
|
|
400 p += dst.len;
|
|
0
|
401
|
|
88
|
402 if (conf->mark) {
|
|
|
403 *(p - 2) = conf->mark;
|
|
|
404 }
|
|
0
|
405
|
|
88
|
406 } else {
|
|
|
407 p = ngx_cpymem(p, ctx->cookie.data, 22);
|
|
|
408 *p++ = conf->mark;
|
|
|
409 *p++ = '=';
|
|
|
410 }
|
|
0
|
411
|
|
|
412 if (conf->expires == NGX_HTTP_USERID_MAX_EXPIRES) {
|
|
|
413 p = ngx_cpymem(p, expires, sizeof(expires) - 1);
|
|
|
414
|
|
|
415 } else if (conf->expires) {
|
|
|
416 p = ngx_cpymem(p, expires, sizeof("; expires=") - 1);
|
|
4
|
417 p = ngx_http_cookie_time(p, ngx_time() + conf->expires);
|
|
0
|
418 }
|
|
|
419
|
|
122
|
420 p = ngx_copy(p, conf->domain.data, conf->domain.len);
|
|
0
|
421
|
|
122
|
422 p = ngx_copy(p, conf->path.data, conf->path.len);
|
|
0
|
423
|
|
48
|
424 set_cookie = ngx_list_push(&r->headers_out.headers);
|
|
|
425 if (set_cookie == NULL) {
|
|
0
|
426 return NGX_ERROR;
|
|
|
427 }
|
|
|
428
|
|
58
|
429 set_cookie->hash = 1;
|
|
570
|
430 ngx_str_set(&set_cookie->key, "Set-Cookie");
|
|
0
|
431 set_cookie->value.len = p - cookie;
|
|
|
432 set_cookie->value.data = cookie;
|
|
|
433
|
|
10
|
434 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
435 "uid cookie: \"%V\"", &set_cookie->value);
|
|
|
436
|
|
28
|
437 if (conf->p3p.len == 0) {
|
|
10
|
438 return NGX_OK;
|
|
|
439 }
|
|
|
440
|
|
48
|
441 p3p = ngx_list_push(&r->headers_out.headers);
|
|
|
442 if (p3p == NULL) {
|
|
10
|
443 return NGX_ERROR;
|
|
|
444 }
|
|
|
445
|
|
58
|
446 p3p->hash = 1;
|
|
570
|
447 ngx_str_set(&p3p->key, "P3P");
|
|
10
|
448 p3p->value = conf->p3p;
|
|
|
449
|
|
0
|
450 return NGX_OK;
|
|
|
451 }
|
|
|
452
|
|
|
453
|
|
48
|
454 static ngx_int_t
|
|
582
|
455 ngx_http_userid_create_uid(ngx_http_request_t *r, ngx_http_userid_ctx_t *ctx,
|
|
|
456 ngx_http_userid_conf_t *conf)
|
|
|
457 {
|
|
630
|
458 ngx_connection_t *c;
|
|
|
459 struct sockaddr_in *sin;
|
|
|
460 ngx_http_variable_value_t *vv;
|
|
582
|
461 #if (NGX_HAVE_INET6)
|
|
630
|
462 u_char *p;
|
|
|
463 struct sockaddr_in6 *sin6;
|
|
582
|
464 #endif
|
|
|
465
|
|
|
466 if (ctx->uid_set[3] != 0) {
|
|
|
467 return NGX_OK;
|
|
|
468 }
|
|
|
469
|
|
|
470 if (ctx->uid_got[3] != 0) {
|
|
|
471
|
|
630
|
472 vv = ngx_http_get_indexed_variable(r, ngx_http_userid_reset_index);
|
|
|
473
|
|
|
474 if (vv->len == 0 || (vv->len == 1 && vv->data[0] == '0')) {
|
|
|
475
|
|
|
476 if (conf->mark == '\0'
|
|
|
477 || (ctx->cookie.len > 23
|
|
|
478 && ctx->cookie.data[22] == conf->mark
|
|
|
479 && ctx->cookie.data[23] == '='))
|
|
|
480 {
|
|
|
481 return NGX_OK;
|
|
|
482 }
|
|
|
483
|
|
|
484 ctx->uid_set[0] = ctx->uid_got[0];
|
|
|
485 ctx->uid_set[1] = ctx->uid_got[1];
|
|
|
486 ctx->uid_set[2] = ctx->uid_got[2];
|
|
|
487 ctx->uid_set[3] = ctx->uid_got[3];
|
|
|
488
|
|
582
|
489 return NGX_OK;
|
|
630
|
490
|
|
|
491 } else {
|
|
|
492 ctx->reset = 1;
|
|
|
493
|
|
|
494 if (vv->len == 3 && ngx_strncmp(vv->data, "log", 3) == 0) {
|
|
|
495 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
|
496 "userid cookie \"%V=%08XD%08XD%08XD%08XD\" was reset",
|
|
|
497 &conf->name, ctx->uid_got[0], ctx->uid_got[1],
|
|
|
498 ctx->uid_got[2], ctx->uid_got[3]);
|
|
|
499 }
|
|
582
|
500 }
|
|
|
501 }
|
|
|
502
|
|
|
503 /*
|
|
|
504 * TODO: in the threaded mode the sequencers should be in TLS and their
|
|
|
505 * ranges should be divided between threads
|
|
|
506 */
|
|
|
507
|
|
|
508 if (conf->enable == NGX_HTTP_USERID_V1) {
|
|
|
509 if (conf->service == NGX_CONF_UNSET) {
|
|
|
510 ctx->uid_set[0] = 0;
|
|
|
511 } else {
|
|
|
512 ctx->uid_set[0] = conf->service;
|
|
|
513 }
|
|
|
514 ctx->uid_set[1] = (uint32_t) ngx_time();
|
|
|
515 ctx->uid_set[2] = start_value;
|
|
|
516 ctx->uid_set[3] = sequencer_v1;
|
|
|
517 sequencer_v1 += 0x100;
|
|
|
518
|
|
|
519 } else {
|
|
|
520 if (conf->service == NGX_CONF_UNSET) {
|
|
|
521
|
|
|
522 c = r->connection;
|
|
|
523
|
|
|
524 if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) {
|
|
|
525 return NGX_ERROR;
|
|
|
526 }
|
|
|
527
|
|
|
528 switch (c->local_sockaddr->sa_family) {
|
|
|
529
|
|
|
530 #if (NGX_HAVE_INET6)
|
|
|
531 case AF_INET6:
|
|
|
532 sin6 = (struct sockaddr_in6 *) c->local_sockaddr;
|
|
|
533
|
|
|
534 p = (u_char *) &ctx->uid_set[0];
|
|
|
535
|
|
|
536 *p++ = sin6->sin6_addr.s6_addr[12];
|
|
|
537 *p++ = sin6->sin6_addr.s6_addr[13];
|
|
|
538 *p++ = sin6->sin6_addr.s6_addr[14];
|
|
|
539 *p = sin6->sin6_addr.s6_addr[15];
|
|
|
540
|
|
|
541 break;
|
|
|
542 #endif
|
|
|
543 default: /* AF_INET */
|
|
|
544 sin = (struct sockaddr_in *) c->local_sockaddr;
|
|
|
545 ctx->uid_set[0] = sin->sin_addr.s_addr;
|
|
|
546 break;
|
|
|
547 }
|
|
|
548
|
|
|
549 } else {
|
|
|
550 ctx->uid_set[0] = htonl(conf->service);
|
|
|
551 }
|
|
|
552
|
|
|
553 ctx->uid_set[1] = htonl((uint32_t) ngx_time());
|
|
|
554 ctx->uid_set[2] = htonl(start_value);
|
|
|
555 ctx->uid_set[3] = htonl(sequencer_v2);
|
|
|
556 sequencer_v2 += 0x100;
|
|
|
557 if (sequencer_v2 < 0x03030302) {
|
|
|
558 sequencer_v2 = 0x03030302;
|
|
|
559 }
|
|
|
560 }
|
|
|
561
|
|
|
562 return NGX_OK;
|
|
|
563 }
|
|
|
564
|
|
|
565
|
|
|
566 static ngx_int_t
|
|
376
|
567 ngx_http_userid_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
568 ngx_str_t *name, uint32_t *uid)
|
|
0
|
569 {
|
|
376
|
570 v->len = name->len + sizeof("=00001111222233334444555566667777") - 1;
|
|
382
|
571 v->data = ngx_pnalloc(r->pool, v->len);
|
|
122
|
572 if (v->data == NULL) {
|
|
|
573 return NGX_ERROR;
|
|
|
574 }
|
|
|
575
|
|
206
|
576 v->valid = 1;
|
|
340
|
577 v->no_cacheable = 0;
|
|
206
|
578 v->not_found = 0;
|
|
|
579
|
|
122
|
580 ngx_sprintf(v->data, "%V=%08XD%08XD%08XD%08XD",
|
|
376
|
581 name, uid[0], uid[1], uid[2], uid[3]);
|
|
|
582
|
|
|
583 return NGX_OK;
|
|
|
584 }
|
|
|
585
|
|
|
586
|
|
|
587 static ngx_int_t
|
|
630
|
588 ngx_http_userid_reset_variable(ngx_http_request_t *r,
|
|
|
589 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
590 {
|
|
|
591 *v = ngx_http_variable_null_value;
|
|
|
592
|
|
|
593 return NGX_OK;
|
|
|
594 }
|
|
|
595
|
|
|
596
|
|
|
597 static ngx_int_t
|
|
376
|
598 ngx_http_userid_add_variables(ngx_conf_t *cf)
|
|
|
599 {
|
|
630
|
600 ngx_int_t n;
|
|
376
|
601 ngx_http_variable_t *var;
|
|
|
602
|
|
572
|
603 var = ngx_http_add_variable(cf, &ngx_http_userid_got, 0);
|
|
376
|
604 if (var == NULL) {
|
|
|
605 return NGX_ERROR;
|
|
|
606 }
|
|
|
607
|
|
|
608 var->get_handler = ngx_http_userid_got_variable;
|
|
|
609
|
|
582
|
610 var = ngx_http_add_variable(cf, &ngx_http_userid_set, 0);
|
|
376
|
611 if (var == NULL) {
|
|
|
612 return NGX_ERROR;
|
|
|
613 }
|
|
|
614
|
|
|
615 var->get_handler = ngx_http_userid_set_variable;
|
|
122
|
616
|
|
630
|
617 var = ngx_http_add_variable(cf, &ngx_http_userid_reset,
|
|
|
618 NGX_HTTP_VAR_CHANGEABLE);
|
|
|
619 if (var == NULL) {
|
|
|
620 return NGX_ERROR;
|
|
|
621 }
|
|
|
622
|
|
|
623 var->get_handler = ngx_http_userid_reset_variable;
|
|
|
624
|
|
|
625 n = ngx_http_get_variable_index(cf, &ngx_http_userid_reset);
|
|
|
626 if (n == NGX_ERROR) {
|
|
|
627 return NGX_ERROR;
|
|
|
628 }
|
|
|
629
|
|
|
630 ngx_http_userid_reset_index = n;
|
|
|
631
|
|
122
|
632 return NGX_OK;
|
|
|
633 }
|
|
|
634
|
|
|
635
|
|
48
|
636 static void *
|
|
|
637 ngx_http_userid_create_conf(ngx_conf_t *cf)
|
|
126
|
638 {
|
|
0
|
639 ngx_http_userid_conf_t *conf;
|
|
|
640
|
|
48
|
641 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_userid_conf_t));
|
|
|
642 if (conf == NULL) {
|
|
496
|
643 return NULL;
|
|
0
|
644 }
|
|
|
645
|
|
28
|
646 /*
|
|
|
647 * set by ngx_pcalloc():
|
|
|
648 *
|
|
570
|
649 * conf->name = { 0, NULL };
|
|
|
650 * conf->domain = { 0, NULL };
|
|
|
651 * conf->path = { 0, NULL };
|
|
|
652 * conf->p3p = { 0, NULL };
|
|
28
|
653 */
|
|
0
|
654
|
|
58
|
655 conf->enable = NGX_CONF_UNSET_UINT;
|
|
0
|
656 conf->service = NGX_CONF_UNSET;
|
|
|
657 conf->expires = NGX_CONF_UNSET;
|
|
88
|
658 conf->mark = (u_char) '\xFF';
|
|
0
|
659
|
|
|
660 return conf;
|
|
126
|
661 }
|
|
0
|
662
|
|
|
663
|
|
48
|
664 static char *
|
|
|
665 ngx_http_userid_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
0
|
666 {
|
|
|
667 ngx_http_userid_conf_t *prev = parent;
|
|
|
668 ngx_http_userid_conf_t *conf = child;
|
|
|
669
|
|
212
|
670 ngx_conf_merge_uint_value(conf->enable, prev->enable,
|
|
|
671 NGX_HTTP_USERID_OFF);
|
|
0
|
672
|
|
|
673 ngx_conf_merge_str_value(conf->name, prev->name, "uid");
|
|
28
|
674 ngx_conf_merge_str_value(conf->domain, prev->domain, "");
|
|
10
|
675 ngx_conf_merge_str_value(conf->path, prev->path, "; path=/");
|
|
28
|
676 ngx_conf_merge_str_value(conf->p3p, prev->p3p, "");
|
|
0
|
677
|
|
|
678 ngx_conf_merge_value(conf->service, prev->service, NGX_CONF_UNSET);
|
|
|
679 ngx_conf_merge_sec_value(conf->expires, prev->expires, 0);
|
|
|
680
|
|
88
|
681 if (conf->mark == (u_char) '\xFF') {
|
|
|
682 if (prev->mark == (u_char) '\xFF') {
|
|
|
683 conf->mark = '\0';
|
|
|
684 } else {
|
|
|
685 conf->mark = prev->mark;
|
|
|
686 }
|
|
|
687 }
|
|
|
688
|
|
0
|
689 return NGX_CONF_OK;
|
|
|
690 }
|
|
|
691
|
|
|
692
|
|
230
|
693 static ngx_int_t
|
|
|
694 ngx_http_userid_init(ngx_conf_t *cf)
|
|
|
695 {
|
|
|
696 ngx_http_next_header_filter = ngx_http_top_header_filter;
|
|
|
697 ngx_http_top_header_filter = ngx_http_userid_filter;
|
|
|
698
|
|
|
699 return NGX_OK;
|
|
|
700 }
|
|
|
701
|
|
|
702
|
|
48
|
703 static char *
|
|
|
704 ngx_http_userid_domain(ngx_conf_t *cf, void *post, void *data)
|
|
0
|
705 {
|
|
|
706 ngx_str_t *domain = data;
|
|
|
707
|
|
10
|
708 u_char *p, *new;
|
|
|
709
|
|
52
|
710 if (ngx_strcmp(domain->data, "none") == 0) {
|
|
570
|
711 ngx_str_set(domain, "");
|
|
10
|
712 return NGX_CONF_OK;
|
|
0
|
713 }
|
|
|
714
|
|
382
|
715 new = ngx_pnalloc(cf->pool, sizeof("; domain=") - 1 + domain->len);
|
|
48
|
716 if (new == NULL) {
|
|
10
|
717 return NGX_CONF_ERROR;
|
|
|
718 }
|
|
|
719
|
|
|
720 p = ngx_cpymem(new, "; domain=", sizeof("; domain=") - 1);
|
|
50
|
721 ngx_memcpy(p, domain->data, domain->len);
|
|
10
|
722
|
|
|
723 domain->len += sizeof("; domain=") - 1;
|
|
|
724 domain->data = new;
|
|
|
725
|
|
|
726 return NGX_CONF_OK;
|
|
|
727 }
|
|
|
728
|
|
|
729
|
|
48
|
730 static char *
|
|
|
731 ngx_http_userid_path(ngx_conf_t *cf, void *post, void *data)
|
|
10
|
732 {
|
|
|
733 ngx_str_t *path = data;
|
|
|
734
|
|
|
735 u_char *p, *new;
|
|
|
736
|
|
382
|
737 new = ngx_pnalloc(cf->pool, sizeof("; path=") - 1 + path->len);
|
|
48
|
738 if (new == NULL) {
|
|
10
|
739 return NGX_CONF_ERROR;
|
|
|
740 }
|
|
|
741
|
|
|
742 p = ngx_cpymem(new, "; path=", sizeof("; path=") - 1);
|
|
50
|
743 ngx_memcpy(p, path->data, path->len);
|
|
10
|
744
|
|
|
745 path->len += sizeof("; path=") - 1;
|
|
|
746 path->data = new;
|
|
|
747
|
|
0
|
748 return NGX_CONF_OK;
|
|
|
749 }
|
|
|
750
|
|
|
751
|
|
48
|
752 static char *
|
|
|
753 ngx_http_userid_expires(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
754 {
|
|
|
755 ngx_http_userid_conf_t *ucf = conf;
|
|
|
756
|
|
88
|
757 ngx_str_t *value;
|
|
0
|
758
|
|
|
759 if (ucf->expires != NGX_CONF_UNSET) {
|
|
|
760 return "is duplicate";
|
|
|
761 }
|
|
|
762
|
|
|
763 value = cf->args->elts;
|
|
|
764
|
|
|
765 if (ngx_strcmp(value[1].data, "max") == 0) {
|
|
|
766 ucf->expires = NGX_HTTP_USERID_MAX_EXPIRES;
|
|
|
767 return NGX_CONF_OK;
|
|
|
768 }
|
|
|
769
|
|
|
770 if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
|
771 ucf->expires = 0;
|
|
|
772 return NGX_CONF_OK;
|
|
|
773 }
|
|
|
774
|
|
|
775 ucf->expires = ngx_parse_time(&value[1], 1);
|
|
|
776 if (ucf->expires == NGX_ERROR) {
|
|
|
777 return "invalid value";
|
|
|
778 }
|
|
|
779
|
|
|
780 if (ucf->expires == NGX_PARSE_LARGE_TIME) {
|
|
|
781 return "value must be less than 68 years";
|
|
|
782 }
|
|
|
783
|
|
|
784 return NGX_CONF_OK;
|
|
|
785 }
|
|
10
|
786
|
|
|
787
|
|
48
|
788 static char *
|
|
|
789 ngx_http_userid_p3p(ngx_conf_t *cf, void *post, void *data)
|
|
10
|
790 {
|
|
|
791 ngx_str_t *p3p = data;
|
|
|
792
|
|
52
|
793 if (ngx_strcmp(p3p->data, "none") == 0) {
|
|
570
|
794 ngx_str_set(p3p, "");
|
|
10
|
795 }
|
|
|
796
|
|
|
797 return NGX_CONF_OK;
|
|
|
798 }
|
|
88
|
799
|
|
|
800
|
|
|
801 static char *
|
|
|
802 ngx_http_userid_mark(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
803 {
|
|
|
804 ngx_http_userid_conf_t *ucf = conf;
|
|
|
805
|
|
|
806 ngx_str_t *value;
|
|
|
807
|
|
|
808 if (ucf->mark != (u_char) '\xFF') {
|
|
|
809 return "is duplicate";
|
|
|
810 }
|
|
|
811
|
|
|
812 value = cf->args->elts;
|
|
|
813
|
|
|
814 if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
|
815 ucf->mark = '\0';
|
|
|
816 return NGX_CONF_OK;
|
|
|
817 }
|
|
|
818
|
|
|
819 if (value[1].len != 1
|
|
|
820 || !((value[1].data[0] >= '0' && value[1].data[0] <= '9')
|
|
|
821 || (value[1].data[0] >= 'A' && value[1].data[0] <= 'Z')
|
|
|
822 || (value[1].data[0] >= 'a' && value[1].data[0] <= 'z')
|
|
|
823 || value[1].data[0] == '='))
|
|
|
824 {
|
|
|
825 return "value must be \"off\" or a single letter, digit or \"=\"";
|
|
|
826 }
|
|
|
827
|
|
|
828 ucf->mark = value[1].data[0];
|
|
|
829
|
|
|
830 return NGX_CONF_OK;
|
|
|
831 }
|
|
348
|
832
|
|
|
833
|
|
|
834 static ngx_int_t
|
|
|
835 ngx_http_userid_init_worker(ngx_cycle_t *cycle)
|
|
|
836 {
|
|
|
837 struct timeval tp;
|
|
|
838
|
|
|
839 ngx_gettimeofday(&tp);
|
|
|
840
|
|
|
841 /* use the most significant usec part that fits to 16 bits */
|
|
|
842 start_value = ((tp.tv_usec / 20) << 16) | ngx_pid;
|
|
|
843
|
|
|
844 return NGX_OK;
|
|
|
845 }
|
